Question about Troy Bilt Tb70ss Gas Trimmer
Make sure that your fuel mix is correct and clean. Also make sure there are no air bubbles trapped in the fuel line. Agitate the fuel tank to make sure there is no blockage caused by dirt and debris, and if you have a fuel filter fitted, then make sure it is clean and does not need replacing.
Next check the air filter to make sure it is clean.
Next check that the spark plug is whitish grey and matt in colour and not back, oily or pure white. If so then change the plug and set the correct spark gap for the particular type of plug you are using. If the plug is black and sooty or pure white matt then the fuel mix is incorrect and you will need to adjust this. Black indicates too much oil in the 2 stroke and burning low and the white indicates over temperature and probably not enough oil in the fuel mix or using to high an octane rating. If it is oily then there is far too much oil in the fuel mix and if you are using a 4 stroke or a 2 stroke with additional lubrication then there is oil leaking into the combustion area most likely caused by a worn or cracked piston ring. After that check that the carb is operating correctly and opens fully when starting and closes as the engine warms upon idle. Also make sure that it idles evenly. Also if it stops when you throttle it then look at the spark cap to make sure it is not loose or damaged and produces enough voltage to fire up the plug correctly otherwise you may have a generator issue or a carb problem or air filter problem or something restring air flow. Also check the engine casing over for any cracks or damage.
Posted on Oct 02, 2009
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 08, 2013 | 2000 Suzuki Vitara
Aug 10, 2017 | 1985 Ford Ranger
Jun 03, 2011 | Garden
Apr 27, 2011 | 2002 Pontiac Sunfire
Apr 10, 2017 | 1994 Honda Accord
Oct 28, 2009 | 1997 Dodge Ram 1500 Club Cab
Mar 18, 2009 | 2001 Chevrolet Blazer
Oct 13, 2008 | 1989 Chevrolet S-10 Blazer
640 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: